The C's added the undrafted free agent for their NBA Summer League team, and the 7'6" big man averaged 7.2 points on 77.3 percent shooting, 4.0 rebounds and 1.4 blocked shots in 12.6 minutes per game.
Fall played four seasons for the University of Central Florida prior to joining the C's, averaging 10.1 points, 7.7 rebounds and 2.4 blocks.
The four-year starter enjoyed his best team success last season. The Knights made the second round of the NCAA tournament and nearly upset the No. 1 overall seed Duke Blue Devils before losing 77-76.
Fall scored 15 points, grabbed six rebounds and blocked three shots.
Celtics reporter Keith Smith wrote Wednesday that Fall had a "reported camp deal" in place.
Fall has a lot of work to do to make Boston's roster as an undrafted free agent. The first two spots on Boston's center depth chart are seemingly in place: Newly signed Enes Kanter will start down low while 2018 first-round pick Robert Williams backs him up.
However, Fall has shown enough during summer-league play to get a shot.
"I think Tacko's gonna have a chance to make the roster," Celtics president of basketball operations Danny Ainge told reporters July 17. "We'll see."
Ainge also said Fall's development is a "high priority."
At the very least, the fan favorite has a shot, which has made Celtics fans happy:
Chances are Fall will start his career in the G League with the Maine Red Claws, but the door could be open down the road. An anonymous Celtics coach offered encouraging quotes to Smith via Celtics Blog while also acknowledging where Fall must improve:
"The favorite player in Vegas! (laughs) I mean who didn't love Tacko out here? He's a worker. He's got a long way to go to be an NBA player. But he'll work for it for sure. A year or two in the NBAGL would do him wonders. The biggest thing for Tacko is adding strength. He can do a lot with that size, but he gets moved around too easily. NBA guys will power right through him. And he just needs to learn how to play our game. But he's worth working with."
Boston also announced the signings of 2019 second-round pick Tremont Waters, Max Strus and Javonte Green. Waters and Strus inked two-way deals.